#Drought news: D0 shows up in Grand, Larimer, and Boulder counties

Click here to go to the US Drought Monitor website. Here’s an excerpt:

Summary

Please note any rain which fell after Tuesday morning, 8 a.m. EDT, will be incorporated into next week’s drought assessment. For the 7-day period ending June 21, hot weather intensified or expanded from southern California and the Southwest across the Plains and interior Southeast. Cooler-than-normal conditions for the week were confined mostly to the Northwest. Rain was intermittent, albeit locally heavy, from the Upper Midwest to the Mid-Atlantic and Southeastern States. Despite the locally heavy showers and thunderstorms, the overall trend toward drought persistence or expansion prevailed across many areas east of the Rockies…

Northern Plains

Hot, dry conditions caused drought conditions to intensify locally. While showers and below-normal temperatures were noted over northern-most portions of the region, excessive heat (100-108°F) and a lack of rain caused rapid — albeit localized — drought intensification farther south. Areas hardest hit by the heat and dryness extend from northeastern Wyoming into western South Dakota, with some Abnormal Dryness (D0) extending into North Dakota. Severe Drought (D2) expanded to encapsulate areas that have received less than 60 percent of normal (locally less than 50 percent) rainfall over the past 90 days. Furthermore, satellite-derived vegetation health data as well as reports from the field indicated conditions are deteriorating quickly for crops and pastures, and this region will need rain soon to prevent these areas from slipping into Extreme Drought (D3)…

Western U.S.

Due to the onset of the West’s “dry season”, changes to the region’s drought depiction during the summer months are usually minor, if any. However, protracted short-term dryness — despite generally cooler-than-normal weather — has been noted along the northern Pacific Coast. These more northerly coastal ranges typically receive some precipitation during the latter half of spring, and 60-day rainfall has tallied 35 to 60 percent of normal (deficits of 2 to 6 inches) from northwestern California to the Puget Sound…

Looking Ahead

A pair of disturbances will continue to track east along a stalled frontal boundary, producing a swath of moderate to heavy rain (1 to 3 inches, locally more) from the lower Great Lakes into the Mid-Atlantic States. Somewhat spottier showers will develop south of the front from the middle Mississippi Valley into the Carolinas, though some of this rain could be locally heavy as well. Farther west, a pair of upper-air disturbances will trigger scattered showers and thunderstorms, the first over the central Plains and middle Mississippi Valley, while the second moves into the Northwest. In contrast, hot, mostly dry weather will prevail across Texas, Oklahoma, and much of the West. The NWS 6- to 10-day outlook for June 28 – July 2 calls for above-normal temperatures in the Northeast, Gulf Coast, and from the Plains to the Pacific Coast States. Conversely, cooler-than-normal weather is anticipated across the Corn Belt and Tennessee Valley. Above-normal rainfall is expected across much of the southern and eastern U.S., including the Four Corners, while drier-than-normal conditions prevail from the Northwest into the Great Lakes Region.

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